University of Oulu

Latypova, R, Kauppi, T, Mehtonen, S, Hänninen, H, Porter, D, Kömi, J. Novel stress corrosion testing method for high‐strength steels. Materials and Corrosion. 2019; 70: 521– 528. https://doi.org/10.1002/maco.201810462

Novel stress corrosion testing method for high‐strength steels

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Author: Latypova, Renata1; Kauppi, Timo1,2; Mehtonen, Saara3;
Organizations: 1Faculty of Technology, Materials and Production Engineering, University of Oulu, P.O. Box 4200, 90014 Oulu, Finland
2Arctic Steel and Mining RDI‐group, Lapland University of Applied Science, 94600 Kemi Finland
3SSAB, P.O. Box 93, 92101 Raahe, Finland
4Department of Mechanical Engineering, Aalto University School of Engineering, P.O. Box 14200, 00076 Espoo, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2019040210793
Language: English
Published: John Wiley & Sons, 2019
Publish Date: 2019-10-15
Description:

Abstract

This paper presents a novel TFT (tuning fork test) stress corrosion testing method, which was developed for classifying martensitic high‐strength steels. The novel method was developed by applying finite element calculations to optimize a tuning fork geometry to enable accurate stress adjustment with simple inexpensive equipment. Different steels were exposed to cathodic hydrogen charging conditions with various elastic tensile stress levels that were achieved by displacement control. All steels exhibited hydrogen‐induced stress corrosion cracking after exceeding a material‐specific threshold stress level that decreased linearly with increasing hardness.

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Series: Materials and corrosion
ISSN: 0947-5117
ISSN-E: 1521-4176
ISSN-L: 0947-5117
Volume: 70
Issue: 3
Pages: 521 - 528
DOI: 10.1002/maco.201810462
OADOI: https://oadoi.org/10.1002/maco.201810462
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
Copyright information: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Latypova, R, Kauppi, T, Mehtonen, S, Hänninen, H, Porter, D, Kömi, J. Novel stress corrosion testing method for high‐strength steels. Materials and Corrosion. 2019; 70: 521– 528, which has been published in final form at https://doi.org/10.1002/maco.201810462. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.